This volume does not pretend to represent original research in primary resources, but is a convenient compilation incorporating information from many alternative sources. Most published lineages on the British monarchy are interested primarily in the line of succession, which usually has been male. Descendants of female royals generally get short shrift, but Weir provides at least basic information on all children and grandchildren of each sovereign, together with their spouses. This makes connections to other highly placed English and Continental families and to the royalty of other countries much easier to follow. Coverage is from Egbert in the late eighth century to the present day -- including Scotland -- and the index is very well done (and necessary). An eleven-page bibliography leads the reader to a large number of other secondary works. The only thing missing here is footnotes citing sources -- but the reader should rely on the _Complete Peerage_ for that and use Weir as a ready reference tool only. A very useful addition to one's bookshelf.